#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
//int max(int x, int y)
//{
//	scanf("%d%d", &x, &y);
//	int abc = (x > y) ? x : y;
//	return abc;
//}
//int main()
//{
//	int a = 0, b = 0;
//	int c = max(a, b);
//	printf("%d", c);
//
//}
/*#include <stdio.h>
int main()
{
    int a, b, c = 0;
    while (scanf("%d %d %d", &a, &b, &c) == 3)
    {
        if (a + b > c && a + c > b && b + c > a)
        {

            if (a == b || a == c || b == c)
            {

                if (a == b && a == c)
                {
                    printf("Equilateral triangle!\n");
                    continue;
                }
                printf("Isosceles triangle!\n");
                continue;

            }
            printf("Ordinary triangle!\n");
        }

    }
    printf("Not a triangle!");
}*/
/*#include<stdio.h>
int max(int x, int y)
{
    scanf("%d%d", &x, &y);
    int abc = (x > y) ? x : y;
    return abc;
}
int main()
{
    int a = 0, b = 0;
    int c = max(a, b);
    printf("max=%d", c);

}*/
/*#include <stdio.h>
int main()
{
    int n = 0;
    scanf("%d", &n);
    int a = n / 12;
    int time = 4 * a + 2;
    printf("%d", time);
}*/
#include <stdio.h>
/*int main()
{
    printf("\n%d", printf("Hello world!"));
}*/

/*/#include <stdio.h>
int main()
{
    int a, b, c = 0;
    while (scanf("%d %d %d", &a, &b, &c) == 3)
    {
        if (a + b > c && a + c > b && b + c > a)
        {
            if (a == b && a == c)
                printf("Equilateral triangle!\n");
            else if (a == b || a == c || b == c)
                printf("Isosceles triangle!\n");
            else
                printf("Ordinary triangle!\n");
        }
        else
            printf("Not a triangle!");
    }

}*/
#include <stdio.h>
int main()
{
    float k = 0, h = 0;
    scanf("%f %f", &k, &h);
    h = h / 100;
    float BMI = k / (h * h);
    printf("%.2f", BMI);
}
#include <stdio.h>
//int main()
//{
//    int age = 0;
//    scanf("%d", &age);
//    long int second = 3.156 * 10000000 * age;
//    printf("%ld", second);
//}